TY - GEN
T1 - Ultrathin Functional 2D Nanosheets Promote Energy Storage Performance of BNNS/PP Nanocomposites
AU - Liu, Biao
AU - Cheng, Lu
AU - Liu, Wenfeng
AU - Li, Shengtao
N1 - Publisher Copyright:
© 2024 The Korean Institute of Electrical Engineers (KIEE).
PY - 2024
Y1 - 2024
N2 - Polypropylene (PP), currently the most widely used dielectric material of capacitors, faces a big challenge for advanced electronic and electrical systems, due to its relatively low energy storage performance. In this paper, we presented a straightforward and efficient solution by introducing hydroxylated boron nitride (BNNS-OH), the two-dimensional (2D) broadband nanosheets with surface modification, into the PP matrix. Charge carriers could be captured and confined in nanocomposites, showing the 'barrier effect' of 2D wide bandgap nanosheets. Consequently, the leakage current of the PP-based nanocomposites was suppressed, and a synergistic improvement in breakdown strength (Eb) and charge-discharge efficiency (η) was achieved. When 5 wt% BNNS-OH were incorporated, BNNS-OH/PP nanocomposites maintained a high discharged energy density of 2.65 J/cm3 (with η above 90%), which was 2.4 times higher than that of the pure PP film.
AB - Polypropylene (PP), currently the most widely used dielectric material of capacitors, faces a big challenge for advanced electronic and electrical systems, due to its relatively low energy storage performance. In this paper, we presented a straightforward and efficient solution by introducing hydroxylated boron nitride (BNNS-OH), the two-dimensional (2D) broadband nanosheets with surface modification, into the PP matrix. Charge carriers could be captured and confined in nanocomposites, showing the 'barrier effect' of 2D wide bandgap nanosheets. Consequently, the leakage current of the PP-based nanocomposites was suppressed, and a synergistic improvement in breakdown strength (Eb) and charge-discharge efficiency (η) was achieved. When 5 wt% BNNS-OH were incorporated, BNNS-OH/PP nanocomposites maintained a high discharged energy density of 2.65 J/cm3 (with η above 90%), which was 2.4 times higher than that of the pure PP film.
KW - 2D nanosheets
KW - breakdown strength
KW - discharge efficiency
KW - energy density
KW - polypropylene nanocomposites
UR - https://www.scopus.com/pages/publications/85214391247
U2 - 10.23919/CMD62064.2024.10766252
DO - 10.23919/CMD62064.2024.10766252
M3 - 会议稿件
AN - SCOPUS:85214391247
T3 - 2024 10th International Conference on Condition Monitoring and Diagnosis, CMD 2024
SP - 759
EP - 762
BT - 2024 10th International Conference on Condition Monitoring and Diagnosis, CMD 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Condition Monitoring and Diagnosis, CMD 2024
Y2 - 20 October 2024 through 24 October 2024
ER -